<%= form_for [:shop, @order, @express_track], html: { class: "card" } do |f| %>
  <div class="card-body">
    <h3 class="card-title">
      <%= @express_track.new_record? ? "新增" : "修改" %>物流信息
    </h3>
    <div class="row">
      <div class="col-md-12">
        <div class="form-group">
          <label class="form-label">物流信息内容</label>
          <%= f.text_field :content, class: "form-control" %>
        </div>
      </div>
    </div>
  </div>
  <div class="card-footer text-right">
    <%= f.submit "保 存", class: "btn btn-primary" %>
  </div>
<% end %>